A laser leveling device and method for ground construction without indentation

Abstract

The present invention discloses a laser leveling device and method for ground construction without indentation, which relates to the technical field of construction machinery. The structure mainly includes a laser emitting device, a laser receiving device, a gyroscope, a grinding wheel, a cooling and dust removal water tank, a control system, and a vehicle body, etc. The design of the present invention is scientific and reasonable, simple and easy to operate for operators. After the cement pavement condenses, the vehicle-mounted laser transmitter is turned on, and correspondingly, the laser receiver will detect whether it is on the same horizontal plane as the laser transmitter. When there are uneven protrusions on the road surface, the grinding wheel will grind them off. The vehicle body is equipped with cooling and dust removal equipment, which can ensure the normal operation of the equipment and eliminate dust pollution. Through a complete set of detection and feedback systems, the finally processed road surface can basically achieve a trace-free effect.

Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery, and particularly to a laser leveling device and method for ground construction without indentation. By combining laser technology, electric system, hydraulic system and closed-loop control technology, the expected effect is achieved. Background Art

[0002] With the current good development in China, people's requirements for life are constantly increasing, and the demand for various large factories, squares, stadiums, and parking lots is growing. Most of the construction of such sites uses concrete-cast foundations, and then floor tiles or floor paint are pasted on the surface. Therefore, high requirements are put forward for the flatness of the base layer.

[0003] Traditional concrete floor construction usually uses manual leveling and then a grinding machine for refinement. This method requires a large amount of labor, and at the same time, the quality during the construction process is not controlled, and manual correction is required multiple times. The plane under construction needs to be measured repeatedly, and the work efficiency is greatly reduced. At the same time, a large amount of dust generated during the grinding process not only pollutes the environment but also causes harm to construction workers. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser leveling device and method for ground construction without indentation to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A laser leveling method for ground construction without indentation, which includes the following steps:

[0007] S1. Calibration;

[0008] S2. Detection;

[0009] S3. Leveling;

[0010] S4. Inspection.

[0011] Step S1 includes the following specific steps:

[0012] S101. Select the construction site;

[0013] S102. Adjust the laser position;

[0014] S103. Fill the water tank with water.

[0015] Step S2 includes the following specific steps:

[0016] S201. The laser detection device detects the flatness of the road surface, and the gyroscope detects the slope of the road surface;

[0017] S202. The control system receives the signal of the deviation between the road surface to be processed and the standard road surface, and adjusts the running time and deflection angle of the grinding device.

[0018] Step S3 includes the following specific steps:

[0019] S301. The grinding device receives the controller information and starts to sink and grind;

[0020] S302. After the hydraulic device receives the controller information, it starts to adjust the tilt angle of the grinding wheel;

[0021] S303. The cooling and dust removal device sprays water in a timely manner according to the grinding needs, improves the working stability of the device, and reduces the pollution caused by dust.

[0022] Step S4 includes the following specific steps:

[0023] S401. Detect the flatness of the unprocessed road surface through the laser detection device and the gyroscope, and grind the convex parts;

[0024] S402. Detect whether the processed road surface meets the expected use standard through the laser detection device and the gyroscope module.

[0025] A laser leveling device for ground construction without indentation, the laser leveling device includes a moving device, a laser detection device, and a hydraulic device;

[0026] The laser detection device is composed of a laser emitter and a laser receiver. The laser emitter can change the angle through connection with a hinge. A 90-degree servo motor is installed at the joint of the hinge to achieve precise rotation of the angle of the laser emitter. The 90-degree servo motor is connected to the laser emitter below through a connecting rod, and the control wire harness of the laser emitter can pass through the connecting rod. The laser receiver is connected to two rigid connecting columns through a movable hinge. The rigid connecting columns are fixedly installed at the top of the moving device to ensure that the laser receiver always maintains a vertically downward state. The inclined rigid connecting piece of the laser receiver is mainly used to prevent the device from hitting the right sealing box when working on an uneven road surface, thereby damaging the normal working state of the sensor and affecting the detection accuracy. A number of light sensors are arranged on the laser receiver. The light sensors are mainly used to detect the deviation angle of the laser receiver, that is, the deviation degree between the road surface to be processed and the standard road surface. During the calibration stage, according to the different positions of the adjustable laser emitter on the sensor and the detection data fed back by the control system, manual calibration is carried out.

[0027] A motor base is slidably connected below the hydraulic device, and a slide rail is arranged above the motor base; the hydraulic device includes a hydraulic tank, four hydraulic pumps, a relief valve, a hydraulic chamber, and four hydraulic rods. The hydraulic tank is fixed to the mobile device, and a hydraulic chamber is formed inside the hydraulic tank. The hydraulic pumps are installed inside the hydraulic chamber. The hydraulic pumps adjust the height and inclination of the grinding wheel by adjusting the flow rate and speed of the hydraulic oil. Each hydraulic pump is connected to a hydraulic rod, and each hydraulic rod is installed outside the hydraulic tank. One end of the hydraulic rod is connected to a support member, and the end of the support member is connected to a wedge-shaped slider. The wedge is triangular, and the bottom of the slider is installed inside the slide rail. The device can ensure the movement of the grinding wheel in the vertical direction. There is a chute in the central part of the support member, and a pin shaft is installed in the chute. The pin shaft is fixed to the inner wall of the mobile device, increasing the degree of freedom of the support part in the movement direction. A relief valve is provided at the top of the hydraulic device. The main function of the relief valve is to prevent the internal pressure of the hydraulic device from being too high and damaging the hydraulic equipment during the normal operation of the mobile device.

[0028] A motor is installed inside the motor base. A grinding wheel cover is fixedly installed below the motor base, and a grinding wheel is installed below the grinding wheel cover. The grinding wheel is connected to the motor shaft. The entire set of feedback mechanism of the mobile device includes a laser detection device, a gyroscope, a hydraulic device, a control system, and a cooling and dust removal water tank. The laser detection device is installed in a sealed box at the head of the mobile device. The gyroscope is installed in the middle front of the mobile device, mainly used to detect the inclination of the surface to be worked. The hydraulic device is located at the center of the mobile device. The cooling and dust removal water tank is located at the upper rear of the mobile device. The drive motor is located at the lower rear of the mobile device and provides power for the entire mobile device. The control system is located in the middle rear of the mobile device. The control system adjusts the grinding wheel and the hydraulic device according to the signals detected by the sensors. The hydraulic pump delivers hydraulic oil to the hydraulic rod, and the hydraulic rod transfers the pressure to the support member. There is only movement in the vertical direction during the forward movement of the device; when there is a slope in the forward direction of the device, the gyroscope detects the corresponding signal and transmits it to the control end. The controller adjusts the different flow rates on both sides of the hydraulic pump, and the two support members at both ends will tilt due to different forces, so that the grinding wheel surface will also tilt accordingly, which can more efficiently improve the flatness of the road surface.

[0029] During the actual operation of the grinding wheel, a large amount of heat will be generated, affecting the stability of the device. At the same time, dust pollution will also be produced. This series of problems can be solved by a water spraying device. The water spraying device includes a cooling and dust removal water tank, a water pump, a pipeline, and a water spraying nozzle. The water inside the cooling and dust removal water tank is transported to the grinding wheel cover through the water pump device. The grinding wheel cover is fixedly connected to the motor base. The control system can adjust the flow rate of the water pump. There is a water spraying nozzle below the grinding wheel cover. This water spraying device can achieve the largest contact area with the grinding wheel, maximizing the dust removal and cooling effects.

[0030] The grinding wheel includes a grinding wheel plate and a grinding wheel piece. Below the grinding wheel plate is a grinding wheel bottom plate. The grinding wheel plate and the grinding wheel bottom plate are distributed with evenly sized water overflow nozzles. There are three card slots between the grinding wheel plate and the grinding wheel bottom plate. A locking device is installed in the card slots. The locking device includes a rotating slider and a spring. A spring is installed below the rotating slider. The spring is installed at the position of the groove below the rotating slider. The spring and the rotating slider are on the same axis.

[0031] During the long-term use of the grinding wheel, problems such as wear, cracking, and different precision requirements will occur. It is necessary for the grinding wheel piece and the grinding wheel bottom plate to be convenient, fast, and efficient in fitting. Here, the locking device on the upper part of the grinding wheel is connected to the chuck of the grinding wheel piece. Finally, the rotating slider is locked by rotating and pressing. The main function of the spring is to achieve the self-locking of the chuck on the grinding wheel piece and the rotating slider on the grinding wheel bottom plate. In the normal state, the spring can lock the rotating slider in the groove inside the grinding wheel. When replacing the grinding wheel piece, manually press the rotating slider to compress the spring. The rotating slider moves downward and separates from the groove. Rotate the rotating slider by a certain angle and release it to take out the chuck on the grinding wheel piece. After installing the grinding wheel piece, just screw it back to its original position and release it to lock. The grinding wheel piece is also equipped with a water outlet. The lower grinding wheel surface contacts the working road surface, and the expected working effect can be achieved.

[0032] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0033] 1. The automation degree of the machine is relatively high. With the help of the sensor detection system, real-time detection can be carried out, and functions such as detection, grinding, and cooling are integrated on one device, reducing the labor intensity of workers and greatly improving work efficiency;

[0034] 2. The input of workers is reduced, the maintenance cost is relatively low, and the construction cost is reduced in the long run, which can improve the economic benefits of the enterprise.

[0035] 3. Through high-precision sensors and an open-loop feedback control system, it is possible to quickly judge the flatness of the construction road surface, and the leveling quality has been significantly improved compared with traditional construction methods;

[0036] 4. It has strong work adaptability and can be switched among slopes, flat ground and various working scenarios by simply calibrating the sensors in the working scenarios.

[0037] 5. Compared with traditional laser detection equipment, the laser detection equipment of the present invention adopts a sealing treatment, excluding external interference during the detection process, improving the detection sensitivity of the device, and also avoiding accidents caused by improper operation of workers. At the same time, its operability has been significantly improved, and workers can reduce the cumbersome measurement time when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0039] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 is a schematic diagram of the top structure of the present invention;

[0041] Figure 3 is a schematic diagram of the left side structure of the present invention;

[0042] Figure 4 is a schematic diagram of the structure of the laser detection equipment of the present invention;

[0043] Figure 5 is a schematic diagram of the structure of the laser emission device of the present invention;

[0044] Figure 6 is a schematic diagram of the structure of the laser receiver of the present invention;

[0045] Figure 7 is a schematic diagram of the structure of the hydraulic device of the present invention;

[0046] Figure 8 is a schematic diagram of the top structure of the grinding wheel structure of the present invention;

[0047] Figure 9 is a schematic diagram of the side structure of the replaceable grinding wheel slice of the present invention;

[0048] Figure 10 is a partially enlarged schematic diagram of the locking device of the present invention.

[0049] In the figures:

[0050] laser detection equipment; 101, laser emitter; 102, laser receiver; 1001, adjustable laser emitter; 1002, connecting rod; 1003, 90-degree servo; 1102, light sensor; 1103, movable hinge; 1104, rigid connection column;

[0051] Grinding wheel; 201, grinding wheel base plate; 202, water overflow nozzle; 203, locking device; 204, chuck; 205, grinding wheel surface; 206, water outlet; 207, rotating slider; 208, spring; 209, grinding wheel plate; 210, grinding wheel

[0052] Cooling and dust removal water tank

[0053] Gyroscope

[0054] Hydraulic device; 501, hydraulic pump; 502, hydraulic cavity; 503, hydraulic rod; 504, movable hinge; 505, support member; 506, motor base; 507, slide rail

[0055] Drive motor

[0056] Control system Specific implementation mode

[0057] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0058] Please refer to Figures 1 - 10 , the present invention provides a technical solution: Embodiment

[0059] A laser leveling method for ground construction without indentation. The main working process of the equipment includes the following steps:

[0060] S1. Calibration;

[0061] S2. Detection;

[0062] S3. Leveling;

[0063] S4. Inspection.

[0064] Step S1 includes the following specific steps:

[0065] S101. Select the construction site;

[0066] S102. Adjust the laser position;

[0067] S103. Fill the water tank with water.

[0068] Step S2 includes the following specific steps:

[0069] S201. The laser detection device detects the flatness of the road surface, and the gyroscope detects the slope of the road surface;

[0070] S202. The control system receives the signal of the deviation between the pavement to be processed and the standard pavement, and adjusts the running time and deflection angle of the grinding device.

[0071] Step S3 includes the following specific steps:

[0072] S301. The grinding device receives the controller information and starts to sink and grind.

[0073] S302. After the hydraulic device receives the controller information, it starts to adjust the tilt angle of the grinding wheel.

[0074] S303. The cooling and dust removal device sprays water in a timely manner according to the grinding needs, improves the working stability of the device, and reduces the pollution caused by dust.

[0075] Step S4 includes the following specific steps:

[0076] S401. Detect the flatness of the unprocessed pavement through the laser detection device and the gyroscope, and grind the convex parts.

[0077] S402. Detect whether the processed pavement meets the expected use standards through the laser detection device and the gyroscope module. Embodiment

[0078] A leveling device for non-indentation ground construction includes eight parts: a moving device, a laser detection device 1, a grinding wheel 2, a cooling and dust removal water tank 3, a gyroscope 4, a hydraulic device 5, a driving motor 6, and a control system 7.

[0079] The moving device is a vehicle body, the driving motor 6 provides power for the movement of the moving device, and the control system 7 is used to control the movement of the moving device and the operation of the laser detection device 1, the cooling and dust removal water tank 3, the gyroscope 4, and the hydraulic device 5.

[0080] The laser detection device 1 may be composed of a laser emitter 101 and a laser receiver 102. Among them, the laser emitter 101 can change its angle by being connected to a hinge. A 90-degree servo 1003 is installed at the hinge connection part between the connecting rod 1002 and the mobile device. The 90-degree servo 1003 is connected to the adjustable laser emitter 1001 below through the connecting rod 1002. The 90-degree servo 1003 can precisely rotate to adjust the angle of the adjustable laser emitter 1001. The control wire harness of the adjustable laser emitter 1001 can flow through the connecting rod 1002. The laser receiver 102 is connected to the movable hinge 1103 through two rigid connecting columns 1104 and always remains vertically downward. The inclined rigid connecting columns 1104 of the laser receiver 102 here are mainly used to prevent this device from hitting the right sealing box when working on uneven roads, thus damaging the normal working state of the laser receiver 102 and affecting the detection accuracy. Several light sensors 1102 are distributed on the upper side of the laser receiver 102. During the calibration stage, due to the different positions where the adjustable laser emitter 1001 shines on the light sensors, manual calibration is carried out according to the values fed back by the control system 7. This entire set of laser detection device is in a sealed state, which can reduce the errors caused by external conditions, thereby improving the accuracy of the laser detection device 1 and also avoiding damage to the human body by the laser.

[0081] The grinding wheel 2 mainly cooperates with the hydraulic device 5. A motor base 506 is slidably connected below the hydraulic device 5. A slide rail 507 is arranged above the motor base 506. The hydraulic device 5 includes a hydraulic tank, four hydraulic pumps 501, an overflow valve, a hydraulic chamber 502, and four hydraulic rods 503. The hydraulic tank is fixedly connected to the mobile device. The hydraulic pumps 501 are installed inside the hydraulic tank. Each hydraulic pump 501 is connected to a hydraulic rod 503. Each hydraulic rod 503 is installed outside the hydraulic tank. One end of the hydraulic rod 503 is connected to a support member 505. The end of the support member 505 is movably connected to a wedge-shaped slider. The wedge-shaped slider is triangular. The bottom of the slider is inside the slide rail 507. The wedge-shaped slider can perform linear reciprocating motion along the slide rail 507. There is a chute in the central part of the support member 505. A pin shaft is installed in the chute. The pin shaft is fixedly connected to the inner wall of the mobile device.

[0082] The motor base 506 is installed below the hydraulic device 5. A motor is installed inside the motor base 506. A grinding wheel cover is fixedly installed below the motor base 506. A grinding wheel 2 is installed below the grinding wheel cover. The grinding wheel 2 is connected to the motor shaft. The height and inclination of the grinding wheel 2 can be adjusted by the hydraulic device 5. The hydraulic pump 501 accurately controls the height and inclination by adjusting the flow rate and speed of the hydraulic oil. The hydraulic pump 501 is equipped above the hydraulic chamber 502, and a relief valve is also equipped above the hydraulic pump 501. The hydraulic oil flows through the hydraulic rod and acts on the movable hinge 504, finally pushing the support member 505 to move downward. At the connection part between the support member 505 and the motor base 506, the error caused by the circular motion can be reduced by using a slider connection, and only the vertical motion of the grinding wheel 2 is retained. The above device starts to adjust the working position after receiving the signal from the control system 7.

[0083] The control system 7 adjusts the grinding wheel 2 and the hydraulic device 5 according to the signal detected by the light sensor 1102. The hydraulic pump 501 delivers the hydraulic oil to the stressed part. When there is only an inclination in the forward direction during the forward movement of the device, the support members 505 at both ends are stressed equally, and the grinding wheel 5 only has vertical movement; when there are slopes on the left and right sides in the forward direction of the device, the gyroscope 4 real-time feeds back the detected inclination signal to the control end, and the control system 7 adjusts the flow rate of the hydraulic oil on both sides to change. The support members 505 at both ends will tilt due to different stresses, which can more efficiently improve the flatness of the road surface.

[0084] The cooling and dust removal water tank 3 is mainly used to solve the problems that a large amount of heat is generated during the actual operation of the grinding wheel 2, which affects the working stability of the device, and dust is also generated at the same time. The water pump inside the cooling and dust removal water tank 3 delivers water to the grinding wheel cover. The control system 7 can adjust the flow rate of the water pump. A water spray nozzle is opened below the grinding wheel cover. This water spray device can achieve the largest area of contact with the grinding wheel 2, maximizing the dust removal and cooling effects.

[0085] The grinding wheel 2 will be worn, cracked, and have different precision requirements during long-term use, which requires the grinding wheel 210 to fit the grinding wheel base plate 201 more conveniently, quickly, and efficiently. The grinding wheel 2 includes a grinding wheel plate 209 and a grinding wheel 210. The grinding wheel plate 209 is connected to the motor shaft. The grinding wheel base plate 201 and the grinding wheel 210 are arranged below the grinding wheel plate 209. A certain number of overflow nozzles 202 are distributed on the grinding wheel base plate 201 and the grinding wheel plate 209. A groove is provided at the lower end of the outer edge of the grinding wheel plate 209. The grinding wheel plate 209 and the grinding wheel base plate 201 cooperate with each other to form a slot. A locking device 203 is installed in the slot. The locking device 203 is convenient for the grinding wheel base plate 201 to be fixed. Plate 201 is connected to the grinding wheel 210, and the locking device includes a rotating slider 207 and a spring 208. The spring 208 is installed below the rotating slider 207. The spring 208 is installed in a groove opened below the rotating slider 207. The spring 208 and the rotating slider 207 are kept on the same axis. The spring 208 is fixed on the grinding wheel base plate 201, and a plug interface is opened on the grinding wheel base plate 201 at a position located on one side of the rotating slider 207.

[0086] The grinding wheel 210 is installed below the grinding wheel base plate 201. The diameter of the grinding wheel 210 is equal to the diameter of the grinding wheel base plate 201. Three chucks 204 are evenly distributed above the grinding wheel 210. The three chucks 204 are matched with three locking devices 203. The chuck 204 is "L"-shaped. The length of the rotating slider 207 is greater than the length of the chuck 204 on the grinding wheel 210. The width of the rotating slider 207 is greater than the width of the chuck 204 on the grinding wheel 210. The chuck 204 on the grinding wheel 210 cooperates with the grinding wheel base plate 201. At the same time, the grinding wheel 210 is equipped with a water outlet 206, and the lower grinding wheel surface 205 is in contact with the road surface, finally achieving the expected effect. The chuck 204 enters the slot through the plug interface. Before the chuck 204 enters the slot, the rotating slider 207 is manually pressed and moved outward to make the rotating slider 207 avoid the space for the chuck 204 to enter the slot. After the chuck 204 enters the slot, the rotating slider 207 is first reset inward, and then the rotating slider 207 is released, so that the rotating slider 207 is supported by the spring 208 to press against the chuck 204, thereby realizing the connection between the grinding wheel 210 and the grinding wheel base plate 201.

[0087] Working principle of the present invention:

[0088] Before construction, the staff first needs to calibrate the equipment according to the working conditions. The specific calibration method is to keep the equipment horizontal with the working surface before work. At this time, there will be an angle between the adjustable laser emitter 1001 and the laser receiver 102. Among them, the laser receiver 102 remains vertically downward under any conditions. Only need to adjust the adjustable laser emitter 1001 and the laser receiver 102 to be perpendicular to each other. The adjusted plane will be used as the reference plane when this equipment works normally.

[0089] During the normal operation of this equipment, it will run at a certain speed. Since the grinding wheel 2 needs to clean the protruding part during this process, the running speed here cannot be too fast. During driving, when the road surface in front is uneven, there will be a height difference between the front and rear wheels, and the position of the laser emitted by the laser emitter 101 reflected on the laser receiving device 102 will change. Among them, the laser receiver 102 always remains vertically downward. When the road surface in front is too high, it is detected that the corresponding position of the adjustable laser emitter 1001 on the laser receiver 102 is downward. Through the detection of the light sensor 1102 at its corresponding position, the signal is transmitted to the control system 7. The control system 7 uses the corresponding parameter signal to adjust the hydraulic device 5 to move downward. Since the hydraulic device 5 first detects the uneven position at the front of the vehicle during operation, there needs to be a certain delay between the hydraulic device 5 at the rear and the control signal to ensure that the working part and the detection part of the grinding wheel 2 are in the same position.

[0090] This equipment is installed with a gyroscope 4 module at the head position. Its main function is to detect the slope during its forward movement. When this equipment is tilted, only relying on the up and down movement of the grinding wheel 2 obviously cannot meet the function of leveling the road surface. On a tilted road surface, the gyroscope 4 transmits the tilt degree in the corresponding direction to the control system 7. After the control system 7 processes the signal, it adjusts the tilt degree of the grinding wheel 2. The hydraulic device 5 adjusts the telescopic amount of the hydraulic rod 503 by adjusting the flow rate of the hydraulic pump 501. The support component 505 connected to the hydraulic rod 503 makes a circular motion around the pin shaft. The pin shaft is fixedly connected to the inner wall of the moving device. To eliminate the influence brought by the circular motion, the support part 505 of the hydraulic device 5 and the motor base 506 are connected by sliding. The motor base 506 is configured with corresponding grooves, and only the vertical movement is retained.

[0091] When the laser detection equipment 1 detects a bulge in front, the motor seat 506 moves downward under the adjustment of the hydraulic device 5. When the gyroscope 4 sensor detects that its left side is too high, the motor seat 506 tilts to the left under the adjustment of the hydraulic device 5, driving the grinding wheel 2 to tilt to the left and grinding the slope part flat. Similarly, when its right side is too high, the motor seat 506 tilts to the right under the adjustment of the hydraulic device 5, driving the grinding wheel 2 to tilt to the right. After grinding in the above two directions, the finally processed road surface can basically achieve the expected effect.

[0092] The grinding wheel 2 will generate a lot of heat and dust pollution due to friction during the grinding process. A cooling and dust removal water tank 3 is installed at the tail of the mobile device to cool the grinding wheel 2 and reduce dust. The water pump inside the cooling and dust removal water tank 3 delivers water to the grinding wheel cover. The control system 7 can adjust the speed of the water pump. A water nozzle is opened under the grinding wheel cover. This water spray device can achieve the largest area of ​​contact with the grinding wheel 2, maximizing the dust removal and cooling effect.

[0093] The grinding wheel 2 may be worn, cracked, or have different ground requirements during long-term use, and the grinding wheel 210 needs to be replaced. In the past, the grinding wheel 210 was often replaced by manual loading and unloading. Since the grinding wheel 2 is often in contact with the ground, the screws and nuts are splashed with mud and sand, which increases the difficulty of operation for workers and reduces work efficiency. Frequent loading and unloading will also cause damage to the threads. To solve this problem, three locking devices 203 are installed between the grinding wheel plate 209 and the grinding wheel base plate 201. The locking devices 203 include a rotating slider 207 and a spring 208. Three chucks 204 are evenly distributed above the grinding wheel 210, and the shape of the chuck is "L".

[0094] The locking device 203 cooperates with the chuck 204 on the grinding wheel 210, and is finally locked by rotating and pressing the rotating slider 207. The main function of the spring 208 is to realize the self-locking between the chuck 204 on the grinding wheel 210 and the grinding wheel base plate 201. The spring 208 can clamp the rotating slider 207 in the groove inside the grinding wheel plate 209 in the normal state. When replacing the grinding wheel 210, the rotating slider 207 is manually pressed and bent outward to make the rotating slider 207 avoid the space where the chuck 204 enters the groove. After the chuck 204 enters the groove, the rotating slider 207 is first reset inward, and then the rotating slider 207 is released, so that the rotating slider 207 is supported by the spring 208 to press against the chuck 204, thereby realizing the connection between the grinding wheel 210 and the grinding wheel base plate 201.

[0095] The device can also check the flatness of the ground, and analyze whether the data fed back by the laser detection device 1 and the gyroscope 4 meet the expected engineering requirements.

[0096] Through a complete set of calibration, detection, feedback and inspection of this device, the finally processed road surface can basically achieve the effect of no indentation, greatly reducing the working intensity of labor personnel, lowering the construction cost of enterprises, and indirectly improving the construction environment.

[0097] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0098] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A laser leveling device for ground construction without indentation, characterized in that: The laser leveling device includes a moving device, a laser detection device (1), and a hydraulic device (5); The laser detection device (1) consists of a laser emitter (101) and a laser receiver (102). The laser emitter (101) is fixedly installed at the bottom of a connecting rod (1002). The connecting rod (1002) is movably connected to the moving device. A 90-degree servo (1003) is installed at the connection position between the connecting rod (1002) and the moving device. The rotation axis of the 90-degree servo (1003) is connected to the connecting rod (1002). The laser receiver (102) is connected to two rigid connecting columns (1104) through a movable hinge (1103). The rigid connecting columns (1104) are fixedly installed at the top inside the moving device. The laser receiver (102) is vertically downward. A number of light sensors (1102) are arranged above the laser receiver (102). The connection line between the laser emitter (101) and the laser receiver (102) is connected to a control system (7) inside the connecting rod (1002); A motor base (506) is slidably connected below the hydraulic device (5), and a slide rail (507) is arranged above the motor base (506); The hydraulic device (5) includes a hydraulic tank, four hydraulic pumps (501), an overflow valve, a hydraulic chamber (502), and four hydraulic rods (503). The hydraulic tank is fixed to the moving device, and a hydraulic chamber (502) is formed inside the hydraulic tank. The hydraulic pumps (501) are installed inside the hydraulic chamber (502). Each hydraulic pump (501) is connected to a hydraulic rod (503). Each hydraulic rod (503) is installed outside the hydraulic tank. One end of the hydraulic rod (503) is connected to a support member (505). The end of the support member (505) is movably connected to a triangular wedge-shaped slider. The bottom of the wedge-shaped slider is inside the slide rail (507). A chute is provided at the central part of the support member (505). A pin shaft is installed in the chute and is fixedly connected to the inner wall of the moving device; A motor is installed inside the motor base (506). A grinding wheel cover is fixedly installed below the motor base (506), and a grinding wheel (2) is installed below the grinding wheel cover. The grinding wheel (2) is connected to the motor shaft; The entire set of feedback mechanism of the moving device includes a laser detection device (1), a gyroscope (4), a hydraulic device (5), a control system (7), and a cooling and dust removal water tank (3); The gyroscope (4) and the hydraulic device (5) are respectively connected to the control system (7); The hydraulic device (5) can adjust the state of the grinding wheel (2); The laser detection device (1) is installed in a sealed box at the head of the mobile device. The gyroscope (4) is installed in the middle front of the mobile device. The hydraulic device (5) is located at the center of the mobile device. The control system (7) is located in the middle rear of the mobile device. The cooling and dust removal water tank (3) is located in the upper rear of the mobile device. A water spray pipe is led out from the middle lower part of the cooling and dust removal water tank (3). The water spray pipe is connected to the grinding wheel cover, and water spray nozzles are distributed below the grinding wheel cover.

2. The laser leveling device for ground construction without indentation according to claim 1, wherein: The grinding wheel (2) includes a grinding wheel plate (209) and a grinding wheel sheet (210). Below the grinding wheel plate (209) is a grinding wheel bottom plate (201). Uniformly sized water overflow nozzles (202) are distributed on the grinding wheel plate (209) and the grinding wheel bottom plate (201). Three card slots are formed between the grinding wheel plate (209) and the grinding wheel bottom plate (201). A locking device (203) is installed in the card slots. The locking device (203) includes a rotating slider (207) and a spring (208). A spring (208) is installed below the rotating slider (207). The spring (208) is installed in a groove below the rotating slider (207). The spring (208) and the rotating slider (207) are on the same axis. The spring (208) is fixed on the grinding wheel bottom plate (201). An insertion interface is provided on the grinding wheel bottom plate (201).

3. The laser leveling device for ground construction without indentation according to claim 2, wherein: The grinding wheel sheet (210) is installed below the grinding wheel bottom plate (201). The diameter of the grinding wheel sheet (210) is equal to the diameter of the grinding wheel bottom plate (201). Three chucks (204) are evenly distributed above the grinding wheel sheet (210). The three chucks (204) match the three locking devices (203). The chuck (204) is in an "L" shape. The length of the rotating slider (207) is greater than the length of the chuck (204) on the grinding wheel sheet (210). The width of the rotating slider (207) is greater than the width of the chuck (204) of the grinding wheel sheet (210). The chuck (204) on the grinding wheel sheet (210) and the rotating slider (207) on the grinding wheel bottom plate (201) cooperate with each other.

4. A laser leveling method for ground construction without indentation, characterized in that: The leveling method is applicable to the laser leveling device for ground construction without indentation according to any one of claims 1-3. The laser leveling method for ground construction without indentation includes the following steps: S1. Calibration; S2. Detection; S3. Leveling; S4. Inspection; Step S1 includes the following specific steps: S101. Select the construction site; S102. Adjust the laser position; S103. Fill the water tank with water.

5. A laser leveling method for ground construction without indentation according to claim 4, characterized in that: Step S2 includes the following specific steps: S201. The laser detection device detects the flatness of the road surface, and the gyroscope detects the slope of the road surface; S202. The control system receives the signal of the deviation between the road surface to be processed and the standard road surface, and adjusts the running time and deflection angle of the grinding device.

6. A laser leveling method for ground construction without indentation according to claim 4, characterized in that: Step S3 includes the following steps: S301. After the grinding device receives the controller signal, it starts to sink and grind. S302. After the hydraulic device receives the controller signal, it starts to adjust the tilt angle of the grinding wheel. S303. Under the control of the control system, the power of the cooling and dust removal equipment is adjusted according to the speed of the grinding wheel.

7. A laser leveling method for ground construction without indentation according to claim 4, characterized in that: Step S4 includes the following specific steps: S401. Detect the flatness of the unprocessed road surface through the laser detection device and the gyroscope, and grind the convex parts; S402. Detect whether the processed road surface meets the expected use standard through the laser detection device and the gyroscope module.

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